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Rain: changed the top-level parser to be able to parse multiple processes in a file

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This commit is contained in:
Neil Brown 2007-08-23 20:42:21 +00:00
parent 0520f3aaa0
commit ab918eb9ab
2 changed files with 27 additions and 7 deletions
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14
RainParse.hs
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@ -303,11 +303,19 @@ declaration :: RainParser (Meta,A.Structured -> A.Structured)
declaration = try $ do {t <- dataType; sColon ; n <- name ; sSemiColon ;
return (findMeta t, A.Spec (findMeta t) $ A.Specification (findMeta t) n $ A.Declaration (findMeta t) t) }
topLevelDecl :: RainParser A.Structured
topLevelDecl = do {m <- sProcess ; procName <- name ; params <- tupleDef ; body <- block ;
terminator :: A.Structured
terminator = (A.OnlyP emptyMeta $ A.Main emptyMeta)
processDecl :: RainParser A.Structured
processDecl = do {m <- sProcess ; procName <- name ; params <- tupleDef ; body <- block ;
return $ A.Spec m
(A.Specification m procName (A.Proc m A.PlainSpec (formaliseTuple params) body))
(A.OnlyP m $ A.Main m)}
terminator}
topLevelDecl :: RainParser A.Structured
topLevelDecl = do decls <- many processDecl
eof
return $ A.Several emptyMeta decls
rainSourceFile :: RainParser (A.Process, CompState)
rainSourceFile

20
RainParseTest.hs
View File

@ -342,18 +342,30 @@ testTopLevelDecl :: [ParseTest A.Structured]
testTopLevelDecl =
[
pass ("process noargs() {}", RP.topLevelDecl,
assertPatternMatch "testTopLevelDecl 0" $ tag3 A.Spec DontCare
assertPatternMatch "testTopLevelDecl 0" $ tag2 A.Several DontCare [tag3 A.Spec DontCare
(tag3 A.Specification DontCare (simpleNamePattern "noargs") $ tag4 A.Proc DontCare A.PlainSpec ([] :: [A.Formal])
(tag2 A.Seq DontCare $ tag2 A.Several DontCare ([] :: [A.Structured]))
)
(tag2 A.OnlyP DontCare $ tag1 A.Main DontCare)
(tag2 A.OnlyP DontCare $ tag1 A.Main DontCare)]
)
, pass ("process onearg(int: x) {x = 0;}", RP.topLevelDecl,
assertPatternMatch "testTopLevelDecl 1" $ tag3 A.Spec DontCare
assertPatternMatch "testTopLevelDecl 1" $ tag2 A.Several DontCare [tag3 A.Spec DontCare
(tag3 A.Specification DontCare (simpleNamePattern "onearg") $ tag4 A.Proc DontCare A.PlainSpec [tag3 A.Formal A.ValAbbrev A.Int (simpleNamePattern "x")]
(tag2 A.Seq DontCare $ tag2 A.Several DontCare [tag2 A.OnlyP DontCare $ makeAssignPattern (variablePattern "x") (intLiteralPattern 0)]) )
(tag2 A.OnlyP DontCare $ tag1 A.Main DontCare)
(tag2 A.OnlyP DontCare $ tag1 A.Main DontCare)]
)
,pass ("process noargs0() {} process noargs1 () {}", RP.topLevelDecl,
assertPatternMatch "testTopLevelDecl 2" $ tag2 A.Several DontCare [
tag3 A.Spec DontCare
(tag3 A.Specification DontCare (simpleNamePattern "noargs0") $ tag4 A.Proc DontCare A.PlainSpec ([] :: [A.Formal])
(tag2 A.Seq DontCare $ tag2 A.Several DontCare ([] :: [A.Structured]))
) (tag2 A.OnlyP DontCare $ tag1 A.Main DontCare)
,tag3 A.Spec DontCare
(tag3 A.Specification DontCare (simpleNamePattern "noargs1") $ tag4 A.Proc DontCare A.PlainSpec ([] :: [A.Formal])
(tag2 A.Seq DontCare $ tag2 A.Several DontCare ([] :: [A.Structured]))
) (tag2 A.OnlyP DontCare $ tag1 A.Main DontCare)
]
)
, fail ("process", RP.topLevelDecl)
, fail ("process () {}", RP.topLevelDecl)
, fail ("process foo", RP.topLevelDecl)